Aptitude - Average - Discussion
Discussion Forum : Average - General Questions (Q.No. 9)
9.
A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?
Answer: Option
Explanation:
| Total quantity of petrol consumed in 3 years |
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Total amount spent = Rs. (3 x 4000) = Rs. 12000.
 Average cost = Rs. |
 |
12000 x 51 |  |
= Rs. | 6120 | = Rs. 7.98 |
| 76700 | 767 |
Discussion:
92 comments Page 8 of 10.
Harika said:
8 years ago
Nice explanation @Krishna.
Gaurav dudeja said:
1 decade ago
What is its short trick?
Shivna said:
4 years ago
Thank you @M.V Krishna.
(1)
Subai said:
7 years ago
Thanks, really useful.
Abhishek said:
1 decade ago
Where 51 came from?
Ash said:
1 decade ago
Thanks krishna...
Sharja said:
7 years ago
Yes, right @Mass.
Mounika said:
10 years ago
Answer: 1503.92.
Shivani Sharma said:
6 years ago
Thanks @Krishna.
Arif islam said:
8 years ago
Thanks @Krishna.
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